UCAI
| Acronym | Definition |
|---|---|
| UCAI | Unione Cattolica Artisti Italiani (Catholic Union of Italian Artists) |
| UCAI | Union Catalog of Art Images (art database; est. 2002) |
| UCAI | Underwriting Contract Administrators Inc. (Dartmouth, Nova Scotia, Canada) |
| UCAI | Ulcerative Colitis Activity Index |
| UCAI | United Christian Assemblies International (Albion, IN) |